US Bridges

Z30 240th Ave over South Fork Lost Creek

Good

Scott County, Iowa · 079E50702 · Structure no. 000000000302931

Built
2024
1 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete Continuous
Length
107 ft
3 main spans
Daily traffic
2,221
2023 count
Owner
County
County Highway Agency

About this bridge

Z30 240th Ave over South Fork Lost Creek is a concrete continuous slab carrying Z30 240th Ave over South Fork Lost Creek in Scott County, Iowa. It was built in 2024, so it is 1 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,221 vehicles a day, roughly 9% of them trucks, projected to reach 2,221 by 2044. The structure is 107 ft (32.6 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesZ30 240th Ave
CrossesSouth Fork Lost Creek
Location079E50702
RouteCounty Highway 0
CountyScott County
StateIowa
Coordinates41.66212, -90.43255
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 3 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating53.9 US tons
Inventory rating41.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length107 ft (32.6 m)
Longest span43 ft (13.1 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,221 (2023)
Projected traffic2,221 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Z30 240th Ave over South Fork Lost Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is Z30 240th Ave over South Fork Lost Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Z30 240th Ave over South Fork Lost Creek carry?

About 2,221 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Z30 240th Ave over South Fork Lost Creek?

The structure is 107 ft (32.6 m) long with a longest span of 43 ft (13.1 m) and a deck 33 ft wide.

Who owns Z30 240th Ave over South Fork Lost Creek?

It is owned by the County Highway Agency.